60
VERSION 03/2020 ORDER NUMBER DOC2330732
VU 1/VU 2/VU 3
9 TROUBLESHOOTING AND RECTIFICATION
DANGER
Incorrect maintenance/repair!
Danger to life and equipment damage.
WAGNER devices, protective systems and safety, monitoring and control equipment
may only be serviced/repaired as dened in Directive 2014/34/EC (ATEX) by trained
WAGNER service personnel or skilled persons in accordance with TRBS 1203!
Note national regulations!
Service, repair or replacement of devices or parts of devices may only be performed
outside the hazard area!
Malfunction Cause Remedy
Jerky return movement – Loose drive belt –
Check the drive belt in
accordance with Chapter 8.3 and
Chapter 8.4
Device carriers vibrate heavily – Defective ball-bearing guides – Replace the ball-bearing guides
– Dirty guide rails – Clean the guide rails
– Uneven oor, the reciprocator
column is inclined
– Level the oor, adjust reciprocator
column into a vertical position
– Loose screws on the device
carriers
– Tighten screws
The lifting carriage regularly
travels to the end position or
reversal points move
– The connection between the
encoder and gear unit has
become loose
– Check the connection
– Defective encoder
(incremental encoder)
– Contact WAGNER service
department
Electrical spark-over between
the reciprocator and objects or
persons that come close to it
– Insucient grounding –
Implement grounding measures
in accordance with Chapter 6.13
The lip seal squeaks – The seal is rubbing too hard
against the T prole
– Lightly lubricate the lip seal with
PTFE spray
– Use a cloth to spread the
lubricant onto the sliding surface